Podcast
Questions and Answers
Which of the following is NOT a way in which compensation can work in organisms?
Which of the following is NOT a way in which compensation can work in organisms?
- Changing the abundance of an enzyme
- Matching enzyme isoform expression to environmental conditions
- Changing the temperature of the environment (correct)
- Changing enzymes in a pathway
Which of the following statements about isozymes is TRUE?
Which of the following statements about isozymes is TRUE?
- Isozymes have the same kinetic parameters
- Isozymes have the same amino acid sequence
- Isozymes catalyze different chemical reactions
- Isozymes allow fine-tuning of metabolism (correct)
In which organism does compensation occur by increasing the amount of enzyme to compensate for reduced efficiency at lower temperature?
In which organism does compensation occur by increasing the amount of enzyme to compensate for reduced efficiency at lower temperature?
- Antarctic icefish (correct)
- Butter
- Rainbow Trout
- Olive Oil
What happens to the affinity of acetylcholinesterase for acetylcholine in the Antarctic icefish?
What happens to the affinity of acetylcholinesterase for acetylcholine in the Antarctic icefish?
In the Rainbow Trout, at what temperature is there full compensation?
In the Rainbow Trout, at what temperature is there full compensation?
What contributes to compensation in organisms through changes in an enzyme's microenvironment?
What contributes to compensation in organisms through changes in an enzyme's microenvironment?
Which of the following changes in the phospholipid membrane increases fluidity?
Which of the following changes in the phospholipid membrane increases fluidity?
What does behavioural thermoregulation in lizards involve?
What does behavioural thermoregulation in lizards involve?
What does behavioural thermoregulation in drought-stressed corn involve?
What does behavioural thermoregulation in drought-stressed corn involve?
Are ectotherms passive victims of their thermal environments?
Are ectotherms passive victims of their thermal environments?
Which equation represents the relationship between metabolic rate (M), body temperature (Tb), and constants (a and n) for an ectotherm?
Which equation represents the relationship between metabolic rate (M), body temperature (Tb), and constants (a and n) for an ectotherm?
What is the intercept in the equation $logM = log(a) + nTb$?
What is the intercept in the equation $logM = log(a) + nTb$?
What does Q10 represent in the equation $Q10 = \frac{RT}{R(T-10)}$?
What does Q10 represent in the equation $Q10 = \frac{RT}{R(T-10)}$?
Which statement about the temperature-metabolic rate relationship is true?
Which statement about the temperature-metabolic rate relationship is true?
What is the function of enzymes in facilitating chemical reactions?
What is the function of enzymes in facilitating chemical reactions?
What does Km represent in the reaction rate equation $Vmax = \frac{Vmax}{2} + Km$?
What does Km represent in the reaction rate equation $Vmax = \frac{Vmax}{2} + Km$?
How does enzyme-substrate affinity change with temperature?
How does enzyme-substrate affinity change with temperature?
What is the term for a genetically controlled trait that confers a greater probability of survival and successful reproduction in a population?
What is the term for a genetically controlled trait that confers a greater probability of survival and successful reproduction in a population?
Which term describes a chronic response of an individual to a changed environment?
Which term describes a chronic response of an individual to a changed environment?
What is the measure of enzyme-substrate affinity used in the HCA method?
What is the measure of enzyme-substrate affinity used in the HCA method?
Which of the following best describes temperature?
Which of the following best describes temperature?
What determines the direction of heat transfer?
What determines the direction of heat transfer?
Which of the following best describes heat?
Which of the following best describes heat?
What is the formula for latent heat of vaporisation of water?
What is the formula for latent heat of vaporisation of water?
Which of the following best describes ectotherms?
Which of the following best describes ectotherms?
What is the term for having different body temperatures in different parts of the body?
What is the term for having different body temperatures in different parts of the body?
Which of the following best describes endotherms?
Which of the following best describes endotherms?
What is the term for organisms that allow their body temperature to vary?
What is the term for organisms that allow their body temperature to vary?
What is the term for organisms that keep their body temperature constant?
What is the term for organisms that keep their body temperature constant?
What is the term for organisms that have more than one temperature set point or switch between homeothermy and poikilothermy?
What is the term for organisms that have more than one temperature set point or switch between homeothermy and poikilothermy?
